If you are a crime and film noir enthusiast, watch this series. It is the best -- both acting and story are solidy authentic -- and many a later drama owes its sense of legitamacy from this one. Loved watching this in the 80s as a college student, and Wiseguy (the series that followed it) was at least equally compelling. Film noir buffs of any era will find much to love here. Can't recommend this series highly enough.